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Extrema Ratio MK2.1 Black

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Extrema Ratio MKII Testudo

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Extrema Ratio MK2.1 Black

18+ Age Restriction Icon

In Stock

Available for Delivery

Be the first to review this product



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Please note that this item will be dispatched once in stock. We estimate that stock will be here in 4 – 6 Weeks


Extrema Ratio MK2.1 Black

Extrema Ratio MK2.1 Black



Military hardwear doesn`t come much harder or better made than that from Extrema Ratio. Featruing a bayoment fixture, this knife is used by military personnel around the world. The blade, guard and pommel are all made form Cobalt N690 stainless steel whilst the handle is Forprene. Tough and uncompromising they are supplied with a nylon plastic reinforced sheath with leg strap.


Code ER-04.1000.0128/BLK
Limited Edition: No
Brand: Extrema Ratio
Blade Material: N690 Stainless Steel
Blade Length (cm): 17.7
Blade Thickness (cm): 0.0
Overall Length (cm): 30.5
Handle Material: Polymer
Sheath: Nylon


  1. MK 2.1Review by
    I like aggressive handles, but I thought this one might be too aggressive even for me. It's not, it's just very functional. So, this is based on the 1942-43 Mark 2 pattern. That could be a Camillus, stamped USN, or a Ka-Bar, stamped USMC. The E.R. MK 2.1 is the most solid version, I promise you. Blade - 7" long. Handle - 5" long (including guard). Stock - 6.29mm. Balance point - on the first finger, behind the guard. This is designed to be disassembled without a tool, mine arrived very tight from the factory, so I haven't tried it yet. Check out - darrex00 on YouTube, to see it come apart. The scabbard is first class. It has a hard insert, and a removable retaining strap. I have inverted the travel flap on mine, buckle underneath, for a better fit. I am very pleased with my purchase. (Posted on )

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